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// Copyright 2019-2024 Open Networking Foundation (ONF) and the ONF Contributors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// deploy VOLTHA using kind-voltha and performs a scale test
// NOTE we are importing the library even if it's global so that it's
// easier to change the keywords during a replay
library identifier: 'cord-jenkins-libraries@master',
retriever: modernSCM([
$class: 'GitSCMSource',
remote: 'https://gerrit.opencord.org/ci-management.git'
])
pipeline {
/* no label, executor is determined by JJB */
agent {
label "${params.buildNode}"
}
options {
timeout(time: 120, unit: 'MINUTES')
}
environment {
JENKINS_NODE_COOKIE="dontKillMe" // do not kill processes after the build is done
KUBECONFIG="$HOME/.kube/config"
SSHPASS="karaf"
PATH="$PATH:$WORKSPACE/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/snap/bin"
LOG_FOLDER="$WORKSPACE/logs"
}
stages {
stage ('Cleanup') {
steps {
timeout(time: 11, unit: 'MINUTES') {
script {
def namespaces = ["infra"]
// FIXME we may have leftovers from more VOLTHA stacks (eg: run1 had 10 stacks, run2 had 2 stacks)
volthaStacks.toInteger().times {
namespaces += "voltha${it + 1}"
}
helmTeardown(namespaces)
}
sh returnStdout: false, script: '''
helm repo add onf https://charts.opencord.org
helm repo update
# remove all persistent volume claims
kubectl delete pvc --all-namespaces --all
PVCS=\$(kubectl get pvc --all-namespaces --no-headers | wc -l)
while [[ \$PVCS != 0 ]]; do
sleep 5
PVCS=\$(kubectl get pvc --all-namespaces --no-headers | wc -l)
done
# remove orphaned port-forward from different namespaces
ps aux | grep port-forw | grep -v grep | awk '{print $2}' | xargs --no-run-if-empty kill -9 || true
cd $WORKSPACE
rm -rf $WORKSPACE/*
'''
}
}
}
stage('Download Code') {
steps {
getVolthaCode([
branch: "${release}",
volthaSystemTestsChange: "${volthaSystemTestsChange}",
volthaHelmChartsChange: "${volthaHelmChartsChange}",
])
}
}
stage('Deploy common infrastructure') {
// includes monitoring
steps {
sh '''
if [ ${withMonitoring} = true ] ; then
helm install -n infra nem-monitoring cord/nem-monitoring \
-f $HOME/voltha-scale/grafana.yaml \
--set prometheus.alertmanager.enabled=false,prometheus.pushgateway.enabled=false \
--set kpi_exporter.enabled=false,dashboards.xos=false,dashboards.onos=false,dashboards.aaa=false,dashboards.voltha=false
fi
'''
}
}
stage('Start logging') {
steps {
script {
startComponentsLogs([
appsToLog: [
'app.kubernetes.io/name=etcd',
'app.kubernetes.io/name=kafka',
'app=onos-classic',
'app=adapter-open-onu',
'app=adapter-open-olt',
'app=rw-core',
'app=ofagent',
'app=bbsim',
'app=radius',
'app=bbsim-sadis-server',
'app=onos-config-loader',
]
])
}
}
}
stage('Deploy VOLTHA infrastructure') {
steps {
timeout(time: 5, unit: 'MINUTES') {
script {
def localCharts = false
if (volthaHelmChartsChange != "" || release != "master") {
localCharts = true
}
def infraHelmFlags =
"--set global.log_level=${logLevel} " +
"--set radius.enabled=${withEapol} " +
"--set onos-classic.onosSshPort=30115 " +
"--set onos-classic.onosApiPort=30120 " +
params.extraHelmFlags
volthaInfraDeploy([
workflow: workflow,
infraNamespace: "infra",
extraHelmFlags: infraHelmFlags,
localCharts: localCharts,
onosReplica: onosReplicas,
atomixReplica: atomixReplicas,
kafkaReplica: kafkaReplicas,
etcdReplica: etcdReplicas,
])
}
}
}
}
stage('Deploy Voltha') {
steps {
installVoltctl("${release}")
deploy_voltha_stacks(params.volthaStacks)
}
}
stage('Configuration') {
steps {
script {
sh returnStdout: false, script: """
# forward ONOS ports
JENKINS_NODE_COOKIE="dontKillMe" _TAG=onos-port-forward /bin/bash -c "while true; do kubectl -n infra port-forward --address 0.0.0.0 service/voltha-infra-onos-classic-hs 8101:8101; done 2>&1 " &
JENKINS_NODE_COOKIE="dontKillMe" _TAG=onos-port-forward /bin/bash -c "while true; do kubectl -n infra port-forward --address 0.0.0.0 service/voltha-infra-onos-classic-hs 8181:8181; done 2>&1 " &
# make sure the the port-forward has started before moving forward
sleep 5
"""
sh returnStdout: false, script: """
# TODO this needs to be repeated per stack
# kubectl exec \$(kubectl get pods | grep -E "bbsim[0-9]" | awk 'NR==1{print \$1}') -- bbsimctl log ${logLevel.toLowerCase()} false
#Setting link discovery
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.provider.lldp.impl.LldpLinkProvider enabled ${withLLDP}
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.net.flow.impl.FlowRuleManager allowExtraneousRules true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.net.flow.impl.FlowRuleManager importExtraneousRules true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.net.flowobjective.impl.InOrderFlowObjectiveManager accumulatorMaxBatchMillis 900
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.net.flowobjective.impl.InOrderFlowObjectiveManager accumulatorMaxIdleMillis 500
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.opencord.olt.impl.Olt provisionDelay 1000
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg log:set ${logLevel} org.onosproject
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg log:set ${logLevel} org.opencord
# Set Flows/Ports/Meters poll frequency
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.provider.of.flow.impl.OpenFlowRuleProvider flowPollFrequency ${onosStatInterval}
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 cfg set org.onosproject.provider.of.device.impl.OpenFlowDeviceProvider portStatsPollFrequency ${onosStatInterval}
#SR is not needed in scale tests and not currently used by operators in production, can be disabled.
sshpass -e ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 app deactivate org.onosproject.segmentrouting
if [ ${withFlows} = false ]; then
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 app deactivate org.opencord.olt
fi
"""
}
}
}
stage('Setup Test') {
steps {
sh '''
mkdir -p $WORKSPACE/RobotLogs
cd $WORKSPACE/voltha-system-tests
make vst_venv
'''
}
}
stage('Run Test') {
steps {
test_voltha_stacks(params.volthaStacks)
}
}
}
post {
always {
stopComponentsLogs([compress: true])
// collect result, done in the "post" step so it's executed even in the
// event of a timeout in the tests
plot([
csvFileName: 'scale-test.csv',
csvSeries: [
[file: 'plots/plot-voltha-onus.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
[file: 'plots/plot-onos-ports.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
[file: 'plots/plot-voltha-flows-before.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
[file: 'plots/plot-voltha-openolt-flows-before.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
[file: 'plots/plot-onos-flows-before.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
[file: 'plots/plot-onos-auth.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
[file: 'plots/plot-voltha-flows-after.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
[file: 'plots/plot-voltha-openolt-flows-after.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
[file: 'plots/plot-onos-flows-after.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
[file: 'plots/plot-onos-dhcp.txt', displayTableFlag: false, exclusionValues: '', inclusionFlag: 'OFF', url: ''],
],
group: 'Voltha-Scale-Numbers', numBuilds: '20', style: 'line', title: "Scale Test (Stacks: ${params.volthaStacks}, OLTs: ${olts}, PONs: ${pons}, ONUs: ${onus})", yaxis: 'Time (s)', useDescr: true
])
step([$class: 'RobotPublisher',
disableArchiveOutput: false,
logFileName: 'RobotLogs/**/log.html',
otherFiles: '',
outputFileName: 'RobotLogs/**/output.xml',
outputPath: '.',
passThreshold: 100,
reportFileName: 'RobotLogs/**/report.html',
onlyCritical: true,
unstableThreshold: 0]);
// get all the logs from kubernetes PODs
sh returnStdout: false, script: '''
# store information on running charts
helm ls --all-namespaces > $LOG_FOLDER/helm-list.txt || true
# store information on the running pods
kubectl get pods --all-namespaces -o wide > $LOG_FOLDER/pods.txt || true
kubectl get pods --all-namespaces -o jsonpath="{range .items[*].status.containerStatuses[*]}{.image}{'\\n'}" | sort | uniq | tee $LOG_FOLDER/pod-images.txt || true
kubectl get pods --all-namespaces -o jsonpath="{range .items[*].status.containerStatuses[*]}{.imageID}{'\\n'}" | sort | uniq | tee $LOG_FOLDER/pod-imagesId.txt || true
# copy the ONOS logs directly from the container to avoid the color codes
printf '%s\n' $(kubectl get pods -n infra -l app=onos-classic -o=jsonpath="{.items[*]['metadata.name']}") | xargs --no-run-if-empty -I# bash -c "kubectl cp -n infra #:${karafHome}/data/log/karaf.log $LOG_FOLDER/#.log" || true
'''
// dump all the BBSim(s) ONU information
script {
for (int i = 1; i <= params.volthaStacks.toInteger(); i++) {
stack_ns="voltha"+i
sh """
mkdir -p \$LOG_FOLDER/${stack_ns}
BBSIM_IDS=\$(kubectl -n ${stack_ns} get pods | grep bbsim | grep -v server | awk '{print \$1}')
IDS=(\$BBSIM_IDS)
for bbsim in "\${IDS[@]}"
do
kubectl -n ${stack_ns} exec -t \$bbsim -- bbsimctl onu list > \$LOG_FOLDER/${stack_ns}/\$bbsim-device-list.txt || true
kubectl -n ${stack_ns} exec -t \$bbsim -- bbsimctl service list > \$LOG_FOLDER/${stack_ns}/\$bbsim-service-list.txt || true
kubectl -n ${stack_ns} exec -t \$bbsim -- bbsimctl olt resources GEM_PORT > \$LOG_FOLDER/${stack_ns}/\$bbsim-flows-gem-ports.txt || true
kubectl -n ${stack_ns} exec -t \$bbsim -- bbsimctl olt resources ALLOC_ID > \$LOG_FOLDER/${stack_ns}/\$bbsim-flows-alloc-ids.txt || true
kubectl -n ${stack_ns} exec -t \$bbsim -- bbsimctl olt pons > \$LOG_FOLDER/${stack_ns}/\$bbsim-pon-resources.txt || true
done
"""
}
}
// get ONOS debug infos
sh '''
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 apps -a -s > $LOG_FOLDER/onos-apps.txt || true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 nodes > $LOG_FOLDER/onos-nodes.txt || true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 masters > $LOG_FOLDER/onos-masters.txt || true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 roles > $LOG_FOLDER/onos-roles.txt || true
sshpass -e ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 30115 karaf@127.0.0.1 netcfg > $LOG_FOLDER/onos-netcfg.txt || true
sshpass -e ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 30115 karaf@127.0.0.1 cfg get > $LOG_FOLDER/onos-cfg.txt || true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 ports > $LOG_FOLDER/onos-ports-list.txt || true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 hosts > $LOG_FOLDER/onos-hosts-list.txt || true
if [ ${withFlows} = true ] ; then
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 volt-olts > $LOG_FOLDER/onos-olt-list.txt || true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 flows -s > $LOG_FOLDER/onos-flows-list.txt || true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 meters > $LOG_FOLDER/onos-meters-list.txt || true
sshpass -e ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 30115 karaf@127.0.0.1 volt-port-status > $LOG_FOLDER/onos-volt-port-status.txt || true
fi
if [ ${provisionSubscribers} = true ]; then
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 volt-programmed-subscribers > $LOG_FOLDER/onos-programmed-subscribers.txt || true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 volt-programmed-meters > $LOG_FOLDER/onos-programmed-meters.txt || true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 volt-bpmeter-mappings > $LOG_FOLDER/onos-bpmeter-mappings.txt || true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 volt-failed-subscribers > $LOG_FOLDER/onos-failed-subscribers.txt || true
fi
if [ ${withEapol} = true ] ; then
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 aaa-users > $LOG_FOLDER/onos-aaa-users.txt || true
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 aaa-statistics > $LOG_FOLDER/onos-aaa-statistics.txt || true
fi
if [ ${withDhcp} = true ] ; then
sshpass -e ssh -q -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no -p 8101 karaf@127.0.0.1 dhcpl2relay-allocations > $LOG_FOLDER/onos-dhcp-allocations.txt || true
fi
'''
// collect etcd metrics
sh '''
mkdir -p $WORKSPACE/etcd-metrics
curl -s -X GET -G http://10.90.0.101:31301/api/v1/query --data-urlencode 'query=etcd_debugging_mvcc_keys_total' | jq '.data' > $WORKSPACE/etcd-metrics/etcd-key-count.json || true
curl -s -X GET -G http://10.90.0.101:31301/api/v1/query --data-urlencode 'query=grpc_server_handled_total{grpc_service="etcdserverpb.KV"}' | jq '.data' > $WORKSPACE/etcd-metrics/etcd-rpc-count.json || true
curl -s -X GET -G http://10.90.0.101:31301/api/v1/query --data-urlencode 'query=etcd_debugging_mvcc_db_total_size_in_bytes' | jq '.data' > $WORKSPACE/etcd-metrics/etcd-db-size.json || true
curl -s -X GET -G http://10.90.0.101:31301/api/v1/query --data-urlencode 'query=etcd_disk_backend_commit_duration_seconds_sum' | jq '.data' > $WORKSPACE/etcd-metrics/etcd-backend-write-time.json || true
'''
// get VOLTHA debug infos
script {
for (int i = 1; i <= params.volthaStacks.toInteger(); i++) {
stack_ns="voltha"+i
voltcfg="~/.volt/config-voltha"+i
try {
sh """
voltctl -m 32MB device list -o json > $LOG_FOLDER/${stack_ns}/device-list.json || true
python -m json.tool $LOG_FOLDER/${stack_ns}/device-list.json > $LOG_FOLDER/${stack_ns}/voltha-devices-list.json || true
rm $LOG_FOLDER/${stack_ns}/device-list.json || true
voltctl -m 32MB device list > $LOG_FOLDER/${stack_ns}/voltha-devices-list.txt || true
DEVICE_LIST=
printf '%s\n' \$(voltctl -m 32MB device list | grep olt | awk '{print \$1}') | xargs --no-run-if-empty -I# bash -c "voltctl -m 32MB device flows # > $LOG_FOLDER/${stack_ns}/voltha-device-flows-#.txt" || true
printf '%s\n' \$(voltctl -m 32MB device list | grep olt | awk '{print \$1}') | xargs --no-run-if-empty -I# bash -c "voltctl -m 32MB device port list --format 'table{{.PortNo}}\t{{.Label}}\t{{.Type}}\t{{.AdminState}}\t{{.OperStatus}}' # > $LOG_FOLDER/${stack_ns}/voltha-device-ports-#.txt" || true
printf '%s\n' \$(voltctl -m 32MB logicaldevice list -q) | xargs --no-run-if-empty -I# bash -c "voltctl -m 32MB logicaldevice flows # > $LOG_FOLDER/${stack_ns}/voltha-logicaldevice-flows-#.txt" || true
printf '%s\n' \$(voltctl -m 32MB logicaldevice list -q) | xargs --no-run-if-empty -I# bash -c "voltctl -m 32MB logicaldevice port list # > $LOG_FOLDER/${stack_ns}/voltha-logicaldevice-ports-#.txt" || true
# remove VOLTHA port-forward
ps aux | grep port-forw | grep voltha-api | grep -v grep | awk '{print \$2}' | xargs --no-run-if-empty kill -9 || true
"""
} catch(e) {
println e
sh '''
echo "Can't get device list from voltctl"
'''
}
}
}
// get cpu usage by container
sh '''
if [ ${withMonitoring} = true ] ; then
cd $WORKSPACE/voltha-system-tests
source ./vst_venv/bin/activate
sleep 60 # we have to wait for prometheus to collect all the information
python scripts/sizing.py -o $WORKSPACE/plots || true
fi
'''
archiveArtifacts artifacts: 'kind-voltha/install-*.log,execution-time-*.txt,logs/**/*.txt,logs/**/*.tar.gz,logs/**/*.tgz,RobotLogs/**/*,plots/*,etcd-metrics/*'
}
}
}
def deploy_voltha_stacks(numberOfStacks) {
for (int i = 1; i <= numberOfStacks.toInteger(); i++) {
timeout(time: 5, unit: 'MINUTES') {
stage("Deploy VOLTHA stack " + i) {
def localCharts = false
if (volthaHelmChartsChange != "" || release != "master") {
localCharts = true
}
def volthaHelmFlags =
"--set global.log_level=${logLevel} " +
"--set enablePerf=true,onu=${onus},pon=${pons} " +
"--set securityContext.enabled=false " +
params.extraHelmFlags
volthaStackDeploy([
bbsimReplica: olts.toInteger(),
infraNamespace: "infra",
volthaNamespace: "voltha${i}",
stackName: "voltha${i}",
stackId: i,
workflow: workflow,
extraHelmFlags: volthaHelmFlags,
localCharts: localCharts,
onosReplica: onosReplicas,
])
}
}
}
}
def test_voltha_stacks(numberOfStacks) {
for (int i = 1; i <= numberOfStacks.toInteger(); i++) {
stage("Test VOLTHA stack " + i) {
timeout(time: 15, unit: 'MINUTES') {
sh """
export VOLTCONFIG=$HOME/.volt/config
# wait a bit to make sure the port-forwarding has started
sleep 5
ROBOT_PARAMS="-v stackId:${i} \
-v olt:${olts} \
-v pon:${pons} \
-v onu:${onus} \
-v workflow:${workflow} \
-v withEapol:${withEapol} \
-v withDhcp:${withDhcp} \
-v withIgmp:${withIgmp} \
--noncritical non-critical \
-e igmp \
-e onu-upgrade \
-e teardown "
if [ ${withEapol} = false ] ; then
ROBOT_PARAMS+="-e authentication "
fi
if [ ${withDhcp} = false ] ; then
ROBOT_PARAMS+="-e dhcp "
fi
if [ ${provisionSubscribers} = false ] ; then
# if we're not considering subscribers then we don't care about authentication and dhcp
ROBOT_PARAMS+="-e authentication -e provision -e flow-after -e dhcp "
fi
if [ ${withFlows} = false ] ; then
ROBOT_PARAMS+="-i setup -i activation "
fi
cd $WORKSPACE/voltha-system-tests
source ./vst_venv/bin/activate
robot -d $WORKSPACE/RobotLogs/voltha${i} \
\$ROBOT_PARAMS tests/scale/Voltha_Scale_Tests.robot
# collect results
python tests/scale/collect-result.py -r $WORKSPACE/RobotLogs/voltha${i}/output.xml -p $WORKSPACE/plots > $WORKSPACE/execution-time-voltha${i}.txt || true
cat $WORKSPACE/execution-time-voltha${i}.txt
"""
sh """
# remove VOLTHA port-forward
ps aux | grep port-forw | grep voltha-api | grep -v grep | awk '{print \$2}' | xargs --no-run-if-empty kill -9 2>&1 > /dev/null || true
"""
}
}
}
}